Ability to map keycode to a certain symbol for keybinds hint

[kRHYME7]

Pull Request

Description

Just found out that keycodes do have a different variable than key
#1302 (comment)

As of the moment keycode mapping is not yet implemented
This MR gives as the ability to use 'code:n' or keycodes on our keybinds hint and can actually be converted to the prefered symbole.

e.g

keycode:61 is '?'

UPDATE:

Also added an option to map the keycode manually ( key codes are actually tied to some keyboard layout so would be better to map it manually https://www.toptal.com/developers/keycode/table )

Type of change

Please put an x in the boxes that apply:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update (non-breaking change; modified files are limited to the documentations)
• Technical debt (a code change that does not fix a bug or add a feature but makes something clearer for devs)
• Other (provide details below)

Checklist

Please put an x in the boxes that apply:

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• My commit message follows the commit guidelines.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added a changelog entry.
• I have added necessary comments/documentation to my code.
• I have added tests to cover my changes.
• I have tested my code locally and it works as expected.
• All new and existing tests passed.

Screenshots

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Additional context

Add any other context about the problem here.

[prasanthrangan]

Alright, it works!